Railroad-tie.



Patented lFeb., 6, 1917/.

4mm/H8 W. E. CHESNEY.

RAILROAD TIE.

APPLICATION FILED MAR. 18. 1916.

Q. kw s MQ UNITED STATES PATENTOFFICE WILLIAM EISWARD CHESNEY. on HALIFAX. Nova s coTI, CANADA.

` RIL'noADl'rIEg Speciictlionef,LettersiPrateiit. Patented 6, 1917.

i ApplicationlledMrch 18, 191,6.Uy SeriaLNa 85,160.v

[onli whomz'tmag/ concern.' i i l Be it known that I, VILLIAM E.CHI JSI\*EY,"4 a subject'of the King of Great B1itai`n',and resident offHalifax, in the countybf'Hall A rex, Province of Nova Scotia, Canada, have jacent to, the ends ofthe blocks 10. Invented anew and Improved Railroad-Tie`,` The lower longitudinal rod 1 3 is carried of which the following is a full,"clear, and upwardlyfnd' outwardly at its ends as at 18 exactdescriliti'on. Y f andis then formedinto a substantially rectangular top frame 1 9. At the inner end of i rods ltie thelrespective side rods or members 14 together and additional transverse tie `-rods 17 connect said side members 1l ad- My invention relates to a reinforcetlon- KQ .icrete rrailroad tie andhas. for a purpose to lTeach]'topf traine 19, the sameextends through 'ide a tie of the characterto'meet com` t al requirementswith respect to stre-'ngth anduinitial cost for manufacture and install h rtion, as well a'sthe lcost of lip-keep andi-e1" c placenient. y l f The invention also has for its object2 to provide al tie ot" the class referred Atoso" formed as to pri-eventtheresult known as z1' "tar 1 gilla1" base ffl-'ame formed by the .inem-` cc i i'ter 1bou1ul track due to the centerportion bers, 14, r17,"and tied by the memberszlt,

o ifthetie bearing'harder on vthe'roadbed than the ends. i (frltlier `objects, as

nlthe consti-ilction,provided to carry out the nvention will appear as the descriptionprotudinal bars l 2 and their inclined members At tlieouterfend each top fra me`19 is engaged by inclined membersrQO integral with and forming the terminals ofthe long'tudinal base. rods- 1%. Thus,` the reinforce sentially rectangular and smaller than the well as the advantages a 'shape to produce a concrete block in the form of a frustum ot' a pyramid.

The longitudinal rods, 12, 13, are lbound by a spiral wire 2L The lower rod 13 takes u'p the tensile stresses in the center bar 1l which 'occur during shipment and installation ol the-tie, while the two upper rods l2 at the saine time assist in taking the colnpressive stresses in the concrete. 'lhe transjverse"rods 16,17 assist in taking' up the comln'essive strains due to passing loads, and the said rods US also resist thestraina of driving,f the Vspikes in fixing the rails as 'hereinafter explained.

` The concrete body 22 is molded in a snitable mold which may be ot simple construclitnirovviiig to the form of my improved tie. ln the end blocks '10. vertically disposed pockets or lcpressions are produced in the concrete to receive woodspike-plugs'each plug beingl composed of a main member 23 rand an auxiliary member 2l. -The body members 2tof the wood plugs are cut in a vertical plane across the grain of the wood and said body is tapered by lieveling` a side 'thereol and thi` auxiliarymember or section 24', ot' the plug, is cut with thc grain and is slightly tapered. I|`| placing these `plugs ceeds.

`lhiterence is to be had lto theaccompany?4 g'dlrznviines forming a part of this specification in which similarreference charact j indicate corresponding` parts in all` the cuts. v i Iigure lis a sideelevation partlyr in lon` tudinal vertical 'section of a railway tie nilmdvinginy invention;

`i;r.,f is a plan view;

" is a plan view of'lhe reinforcing i lillllwu ucturer v Nie'. t is a fragmentary side elevation of the reifniorciney structure;` A l Fig. 5.. is a cross Asection onthe;l line -5- ln Ato n :ittio'ii`{` ei| l blocks l() are ,n ter ce'nnccting':bar ll. 'lfheQreinforcingr structure is composed ol -ree*longitIulinal -rods. there being a 'pair ol separatedtop rods l2 and a bottom roddf disposed `in a `vertical plane between the "ffl planewoi tbc top rods l2 and spaced 'from the latter so that 'the said reinforcing rods are,trlangularlv disposed as `seen best in Figs. 'il and with the center rod at the bottom. f i The en f-lsf1`ot "the" tli're" oligitlidinal' rods. l2, 1?), are,bcnt'l,aiid fc. 'iedfiiitoeach end block 10. rl`he rods ll2 are carried down- 'uardly and outwardly as at 15 and then formed into reinforcing base |nembers14 ing a tie in accordance with in v produced and liloclgs-"fl`t eibo;ly` m eniber5t` inserted li`i'st,"t|ie` bioa'd eiid at the bottom of the end ot' thel tie in' the case of theoutside, pockets and toward the center of the tie in iii each block I at the-sides. T'ainsverse the bends/12 at the j uneture of thezlongibase "frame, is connected with the base .frame by themembers 15, 20, the whole being ot',

pocket, and with the. beveled side toward the,

ing elenients in eachblock 10 include ay rec-' while "the'topt'ra-me 19, which also, isvv esi the case of the inside pockets` The smaller plug section 24 is then driven into position and the tie is ready to receive the spikes B for securing the rail A. In the event the ,spike is withdrawn, the old plug is easily 4bored for the passage of the spikes B. Thus,

in placing a rail a slab 25 is laid on top of the block 10 with the holes in the slab above the plug members 23 so that the spikes B, when driven, will serve to holdthe said cushion members 25 in position as well as the rail A.

It is to be observed that the cross rods 16 extend directly beneath the spike plugs so as to resist the strain of driving the spikes into said plugs.

The upward taper of the blocks 10 provides beveled end surfaces 26. The form.

of the tie is such, that the only tamping needed' is beneath the blocks 10. The said blocks are formed at the bottom surface with broad recesses 27 occupying a material portion of the total area, the provision of which recesses insures against lateral movement in the roadbed and results in producing a stable track.

l'The center connecting bar 11, as clearly seen in Fig. 5 is triangular with the inverted apex engaging the roadbed and the apex is elevated above the bottoms of the end blocks. The purpose of the described cross section and of the elevated connecting bar is kto prevent the center portion of the tie bearing on the roadbed in a manner to create bending stresses in the tie and also to vminimize the possibilityy of the ties resulting in a center bound roadbed by reason of the center bar bearing more firmly on the bed than the end blocks. The triangular form of the center bar also enables me to produce a bar of maximum strength with a minimum of reinforcing material whereby to keep down the cost of manufacture, looking to the production of the tie at a cost reasonably proportionate to that of a wood tie. I have had in mind also, the commercial requirements of the facility with which the rail is fixed in position without radically de parting from the methods involved in the use of wood ties.

Haying thus described my invention I claim'as new and desire to secure by Letters Patent:

1. A railway tie including concrete end blocks, a concrete bar connectingthe blocks,

the said bar being triangular in cross section with the base of the triangle uppermost and the inverted apex at the under side, the said `the side members of the base frame, and

bent around the inner ends of the top frame, and members connecting the base frame and top frame at the outer ends thereof, said members being integral with the side mem- V8 bers of the base-frame.

2. A railway tie including concrete end blocks and a concrete bar connectin said blocks, the said bar being triangu ar in cross section with the base of the triangle 8 uppermost, and the said blocks being of greater width than the said bar, each block bein in the form of a frustum of a pyramid, rein orcing elements in the said blocks, including top frames and base frames and 94 members connecting said frames at the inv ner and outerl ends, and longitudinal reinforcing rods in thev said bar integral with one of said frames, there being three of said rods ldisposed in triangular relation' corre- 9E s ponding with the cross section of the said 3. A railway tie including concrete end blocks, a concrete bar integral with said end blocks, said blocks having pockets therein, 1'@ wood blocks in said pockets adapted toreceive spikes, reinforcing elements, in said blocks including base frames and top frames, cross rods connecting the side members of the base frames directly beneath the said 10 pockets, elements connecting the top' frame and bottom frame in each block, and longitudinally ranging reinforcing rods in the said concrete bar and connected with the reinforcing elements in the said blocks.

4. A reinforced concrete railway tie including end blocks having vertical pockets therein, plugs in said pockets, each'plug be ing formed of a vertically disposed body` member and a vertically disposed auxiliary 111 member, and reinforcing elements inthe said blocks, the reinforcing elements including members directly beneath the said pockets.

In testimony whereof I have signed my name to this specification in the presence of 121 two subscribing witnesses.

WILLIAM EDWARD CHESNEY. 

